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package teste;

import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;

public class Tab {

    public static void main(String[] args) {
        JTabbedPane pane = new JTabbedPane();
        String title = "Tab";
        pane.add(title, new JLabel(title));
        pane.setTabComponentAt(0, new TabComponent(title, pane));


        pane.add(title, new JLabel("opa"));
        pane.setTabComponentAt(1, new TabComponent(title, pane));

        JFrame frame = new JFrame("Tab Component Demo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add(pane);
        frame.setSize(500, 200);
        frame.setVisible(true);
    }
}

class TabComponent extends JPanel implements ActionListener {

    private JTabbedPane pane;

    public TabComponent(String title, JTabbedPane pane) {
        this.pane = pane;
        setOpaque(false);
        JLabel label = new JLabel(title);
        add(label);
        JButton button = new JButton("X");
        button.setPreferredSize(new Dimension(50, 20));
        button.addActionListener(this);
        add(button);
    }

    public void actionPerformed(ActionEvent e) {
        int i = pane.indexOfTabComponent(this);
        if (i != -1) {
            pane.remove(i);
        }
    }
}
